Electric-lamp socket.



PATENTED OUT. 27; 1903. M. NORDEN. ELECTRIC LAMP SOCKET.

APPLICATION FILED FEB. 24, 1903.

N0 MODEL.

. [IV v No. 742,725. Patented October 27, 1903.

UNITED STATES PATENT OFFIC MORTIMER NOBDEN, on NEW YORK, N. Y.

ELECTRIC-LAMP SOCKET.

SPECIFICATION forming part of Letters IPatent No. 742,725, dated October 27, 1903. Application filed February 24,1903. Serial No. 1441608. (No model.)

To all whom it may concern: made of porcelain or other similar vitrified Be it known that I, MORTIMER NORDEN, a material and is provided with a central incitizen of the United States, residing in the tegral cup-shaped portion a, which extends borough of Manhattan,city,county, and State to an appreciable distance beyond two op- 5 of New York, have invented an Improvement posite edges of the cup member. The cup in Electric-Lamp Sockets, of which the followshaped portion a is adapted to inclose the ing is a specification. metallic lamp-socket b, which receives the My invention relates to incandescent-elecbase of theincandescent electric lamp. Extrio-lamp sockets and supports, and particuteriorly of the cup-shaped portion a and in l larly to sockets employed in surface Wiring. diametrically opposite positions the cup mem- The object of my invention is to produce a her a is provided with openings 5 and 6. On socket in which not only electrical contact the under side of the cup member a there may be made with the line-wires to complete are metallic plates 0 and d. The plate 0 is the circuit through the lamp and in which secured to the cup member a by a screw 3,

I 5 the said contact with the line-wires may not preferably passing through the central porbe disturbed by the removal of other parts, tion of the cup-shaped portion a. The plate but also in which the circuit through the dis conveniently made with a semicircular lamp may be made when the said other parts portion 2, conforming generally with the are connected and broken when the said other semicircular portion 1) of the base of the me- 20 parts are disconnected without the risk of tallic socket b. The plate d is secured to the contact with live conductors or the short-circup member a and electrically connected to cuiting of the same. the metallic socketb by means of the screws 4:.

According to my present invention the de- 8 represents the base member, which is provice is of elongated rectangular shape and vided with the longitudinally-disposedcen- 25 comprisesa cup member and abase member, tral recesses 7, 8, and 9. The metallic conboth of which may be made of porcelain or tact-plate f is secured in the recess 7 by other similar suitable material. The cup means of a screw 10, and a metallic contactmember is provided centrally with an inteplate 9 is secured in the recess 8 by means of gral cup-shaped portion extending apprecithe screw 11. These contact-plates f and g o ably on either side thereof, and the base memare provided with binding-posts 13, by which her preferably corresponds in outline with the line-wires may be held in electrical conthe cup member. The cup member is protact against said plates, the base being provided exteriorly of its cup-shaped portion vided at its ends with recesses 12, through with openings placed in diametrically oppo which the line-wires h are carried to and led 35 site positions and through which screws are from the lamp-socket. The short edges of passed,contactingnotonlywithplates through the base member e are provided with tongues which the circuit is made with the socket, 14, and the short edgesof the cup member a but with other plates in the base member are provided with recesses 15, into which the 0 which are connectedelectrically with the linetongues 1e are adapted to fit when the parts 40 wires. These screws complete the electric are placed in position. Screws t are emcircuit extending to and through the lamp ployed and passed through the openings 5 and also mechanically connect the cup memand 6 in the cup member, through the metalber and the base member to hold the same lic plates 0 and d, and into the contact-plates 5 together. t f and g to complete the electric circuit and 45 In the drawings, Figure 1 is a central transhold the parts of the socket together and in verse section of a lamp-socket, representing position, the recess 9 being of such depth that my invention. Fig. 2 is a plan of the cup when the parts are in this relation the base member of the lamp-socket. Fig. 3 is a plan of said recess will be in contact with the meview of the base member, and Fig. 4 is an intallic plates 0 and d.

5o verted plan of the cup member. The base member 6 maybe provided in suitor represents the cup member, which is prefable positions with holes 16, through which erably of elongated rectangular form and screws or other devices may be passed and employed to secure the base member to a wall or other support.

I claim as my invention 1. An electric-lamp socket, comprising a cup member and base member of porcelain or other suitable vitrified material, metal plates secured in recesses in the base member and with which the line-wires make contact, conductor-plates on the under side of the cup member and connections therefrom to the metallic lamp-socket and center thereof, and screws passing through apertures in said cup member outside of the socket, through the conductor-plates and into the plates of the base member to both complete the electric circuit and connect the parts.

2. An electric-lamp socket, comprising a cup member of elongated rectangular form made of porcelain or other suitable vitrified material, a base member of similar form and material having longitudinally-disposed cen-' tral recesses, metal plates secured in said recesses and with which the line-wires make contact, metal plates on the under side of the cup member, screws passing through said cup member and securing said metal plates to the center or" the cup-shaped member and to the metallic lam p-socket,andscrews passing through apertures of the cup member at opposite points outside the cup-shaped portion, passing through said metal plates and engaging the plates of the base member to'connect the parts and complete the electric circuit.

3. An eleotriclamp socket, comprising a cup member of porcelain or other suitable vitrified material, and having a central cupshaped portion and provided with openings exteriorly of the same and diametrically opposite each other, a metallic lamp -socket adapted to fit within said cup-shaped portion, metallic devices on the under side of said cup member, means for securing one of said metallic devices to said cup member, means for connecting the other of said metallic devices to the said cup member and electrically to said metallic lamp-socket, a base member of the same material and configuration as the cup member, other metallic devices secured in either end of said base, binding-posts by which line-wires may be secured to said other metallic devices, and means passing through said openings in the cup member for simultaneously holding the parts together and contacting electrically with both sets of said metallic devices to close the electric circuit through the lamp.

4. An electric-lamp socket, comprising a cup member of porcelain or other vitrified material and having a central cup-shaped portion,and provided with openings placed at dia metrically opposite points exteriorly of said cup-shaped portion, a metal plate on the under side of the-cup member, means passing through the center of said cup-shaped portion and adapted to secure the said metal plate to the cup member, a metallic lampsocket adapted to fit in the said cup-shaped portion, a second metallic plate on the under side of said cup member, means for securing the same to the cup member and electrically to the said metallic lamp-socket, a base member of the samematerial and configuration as the cup member, metallic plates secured in either end of said base member, binding-posts for securing line-wires to said plates, and screws passing through the said openings in the cup member, contacting with the plates secured on the under side thereof and screwing into the said plates secured in the base member to simultaneously hold the parts together and complete the electric circuit through the lamp.

5. An electric-lamp socket, comprising a cup member of elongated rectangular form and made of porcelain or other vitrified material and having an integral central cupshaped portion and provided with openings placed at diametrically opposite points exteriorly of said cup-shaped portion, a metal plate on the underside of the cup member,a screw passing through the center of said cupshaped portion and adapted to secure thesaid metal plate to the cup member, a metallic lamp-socket adapted to fit within the said cupshaped portion, a metal plate havinga semicircular portion on the under side of said cup member, screws for securing the same to the cup member and connecting the same electrically to the said metallic lamp-socket, a base member of the same material and configuration as the cup member and having longitudinally-disposed tallic plates secured to the recesses in either end of said base member, binding-posts for securing line-wires to the said plates, and screws passing through the said openings in the cup member, contacting with the plates secured on the under side thereof and screwing into the said plates secured in the base member to simultaneously hold the parts together and complete the electric circuit through the lamp.

Signed by me this 13th day of February, 1903.

MORTIMER NORDEN. Witnesses:

GEo. T. PINCKNEY, S. T. HAVILAND.

central recesses, me- 

